Display tree



FIG. 1 is a perspective view of the display tree, showing my new design, the dashed line showing of the package and the base is for illustrative purposes only, and forms no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is a bottom plan view thereof. 

The ornamental design for a display tree, as shown and described. 